Quizizz Study Guide: Chemistry Review

How many oxygen atoms are in CO2?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are in 2H2O?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-1

How many total atoms are in Na2SO4?

• 5

• 6

• 7

• 8

Tags

NGSS.MS-PS1-1

How many oxygen atoms are in 3CO2?

• 2

• 3

• 6

• 9

Tags

NGSS.MS-PS1-1

How many atoms of oxygen are in Al2(SO4)3?

• 4

• 8

• 12

• 16

Tags

NGSS.MS-PS1-1

How many total hydrogen atoms are in 4NH4?

• 4

• 8

• 12

• 16

Tags

NGSS.MS-PS1-1

Balance: H2 + O2 → H2O

• H2 + O2 → H2O

• 2H2 + O2 → 2H2O

• H2 + 2O2 → H2O

Balance: Na + Cl2 → NaCl

• Na + Cl2 → NaCl

• 2Na + Cl2 → 2NaCl

• Na + Cl2 → 2NaCl

• 2Na + 2Cl2 → 2NaCl

Tags

NGSS.HS-PS1-7

Balance: Mg + O2 → MgO

• Mg + O2 → MgO

• 2Mg + O2 → 2MgO

• Mg + 2O2 → MgO

• 2Mg + O2 → MgO

Balance: Fe + O2 → Fe2O3

• 2Fe + O2 → Fe2O3

• 4Fe + 3O2 → 2Fe2O3

• Fe + O2 → Fe2O3

• 2Fe + 3O2 → 2Fe2O3

Tags

NGSS.HS-PS1-7